Wax and compound annealer



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H. A. BONOFF wAx AND COMPOUND ANNEALER Filed Nov. 20, 1924 l% F2? 2.3] ..22 2l was. 3 5

Patented Nov. 10, 1925.

HABBYA. .'BONOFF, OF LOS ANGELES, GALH'OBNIA.

Application led November 20, 1924. Serial No. 751,095.

To all whom it mag/concern:

vBe it known lthat I, HARRY A. BoNorE, a citizenf the United States, residing at Los Angeles, in the, county of Los Angeles and State of California, have invented new and useful improvements in Wax and Compound Annealers, of which` the following is a specification.

This invention relates to improvements for devices for heating wax, waxy substances and compounds employed in dentistry, and is animprovement over the device disclosed in my prior Patent, No. 1,511,443, issued October 14, 1924.v

In the device ldisclosed in my prior patent, there is a container containing a liquid which is adapted to be heated by an electric heating element, which heating element is regulated by an automatically operated device, so that the heating of the liquid with,- in the container may be controlled and kept at a given predetermined temperature. n the device disclosed in my prior patent, the articles to be heated are placed' directly within the liquid, and the method 'employed in heating these substances is commonly known as the wet method for softening the articles. Some dentists prefer to use what is known as a. dry method forsoftening the wax or compound for the reason-that the wax -so heated may be placed upon a tray and will stay in position when so placed. y In this method it is desirable to dip the wax or compound, after having been' placed upon ai tray or any suitable implements, within ,warm water, so that when the wax is placed `in the patients mouth, the sur-face burn of the wax will be removed because v of the water. 40 It is therefore an object of this invention to provide such a deviceconsisting of a container, a liquid within the container, Vand means for regulating the temperature of the liquid, and 'to provide cups which are suspended within the liquid, which cups are adapted to receive the wax. waxy substances or compound to be heated. A further object' of this invention is to provide a cup suspended the liquid which is adapted to'hold water which is to be heated to the same temperature as the waxy substances or compounds, so that after the waxy substances or compounds have been placed upon a tray or*l dental implementft-hey may be dipped into the water without raising or lowering their temperature.

lVith the foregoing and other objects in View which will be made manifest in the following detailed description and pointed out in the appended claims, reference is had to the accompanying drawings for an illustrative embodiment of the invention, where- 1n:

Figure 1 is a perspective view of the wax and compound annealer, the cover being shown as having been' removed;

Fig. 2 is a perspective view ofthe annealer, the cover being shown' in applied position; v

Fig. 3 is a top plan view of the container or annealer; Y

Fig. 4 is a vertical section through the annealer; f Y

Fig. 5 is atop plan view, parts being broken away, of the device for automatically regulating the temperature of the liquid;

and

Fig. 6 is a wiring diagram. Y Referring to the accompanying drawings lwherein similar reference characters desigplate 15 is secured in the container above the box 13, whih permits the liquid L within the container'to readily pass therethrough to the upper compartment or' to the lower compartment of the container.

Upon the 'top of the walls of the container 10 there is positioned a cover 16 which has one or more apertures formed therein, in V,which are adapted `.to be disposed cups 18 having flanges 19 around their tops adapted to engage the cover 16 and thus support or suspend the cups from the cover 16 within 'the liquid L. A perforated tube 20 is secured to the wall of the container- 10 and extends downwardly within the liquid. Upon the top of the erally designated at 21. In the'top of the box 21 is formed an aperture adapted to receive a thumb nut 22, which carries a sleeve l23 extending downwardly through the -tubeV 20 Ais positioned a suitable-,box genbottom of the box and into the tube 20. A sleeve 24 is secured to the bottom of the box 2l^and is positionedvabout the sleeve 23, so

as to'maintainthe sleeve 23 centrally within the tube 20. A rod 25 has its upper en'd journaled in the thumb nut 22 and extends downwardly within the sleeve 23 to 'a point adjacent the bottom of the, tube 20.

A helical or coil spring S is securedto the rod 25 andto the lower 'end .of the sleeve 23. The rod 25 carries an arm 26 which carries a contact 27 adapted to engage a contact 28 mounted upon the bottom ofthe box 21. The helical or coil spring S is what is known as a bimetallicspring, that is, that the material of which the spring is made, is formed of two metals secured together, which metals have different co-eflicients of 'expansion underthe action of heat.

Upon the top of the box 21 ma be mounted a suitable scale 29, whic is adapted to be traversed by a pointer 31 carried b the thumb nut 22. ,.A wire 32 is Vconnecte `to -the contact28 and to the heating element 14. A second wire 33 is connected to the contact 27 carried by the arm 26 and is connected to 'one terminal of a switch 34. The other terminal of the switch 34 is connected to a suitable supply wire 35,

andthe remaining terminal vof the heating element '14 is connected to a second surmly wire 36. l A

'IheA operation of the device is as follows:

s When it is desired to heat the liquid L to av certain temperature and to maintain the temperature of the liquid at this degree, the thumb nut 22 is rotated which causes rotation of the sleeve 23, thereby tightening the spring S so that the spring urges rotation of the rod 25 and causes the contact 27 to bear .against the' contact 28. lf the thumb nut 22 is rotated suiliciently to swing the certain corresponding pressure.

-. previously was, so that the loosen and will cause theoontact 27 to move ature of the, liquid L has-reached 110 pointer 31 opposite the scale division marked 110, the spring will be tightened a certain' amount and will cause the con-- element lat-if the liquid @151s below 11'0 deg., the spring S willtend toassume its A original-position and thereby forccthe con- ,Y nasceva tact 27 against the contact 28, thus'causing` the' circiut through the heating element 14 Jto be again closed. In this manner the temperature of the liquid L may be main- -tained at any desired degree depending upon the rotation ofv the thumb nut 22. Friction keeps the sleeve 23 and the thumb nut 22 `in position after having tightened the spring S. f f I As illustrated in Figs. 2 and 3, two of the cups may be comparatively small, fas indi-v from either of the cups 37 and 38 and placed upon atray orV other dental instrument, it will easily adhere thereto because of the fact that it has been heated in a dry state. The

tray with the wax or compound thereon is then dipped into the water within the cup 39 and may then be placed in the patients mouth without causing surface burns. The cups 37 and 38 may both hold compound, if desired, or may both hold pellets, or one of the cups may hold pellets while the other holds compound. lil/'hen it is. desired to heat .a wax pellet within one of the containers 37 or 38, a cup cover 40 is preferably provided, which cup -coverhas a rod 4l depending therefrom, which suspends a tray 42 within the cup, upon which is adapted to be placed one or more pellets P.

From the above, it is seen that anim-` proved wax and compound annealer is provided, which consists essentially of a container adapted t'o hold a liquid, and means for automatically controlling or regulating the heating of the liquid. Cups are pro-l vided which'are suspended. fromgthe cover for the container, in whichwax pellets or compound may be heatedgin their dry state,

and that one of the cups 1s adapted to hold water so that wax or compound, when ready to beapplied, may be immersed in this cup to 'prevent the surface burning effect of the wax or compound without, changing the temperature of the wax or compound. f

It will be understood that various changes in the detail of construction may b e made without departing from the spirit or scope of the inventionas claims.

I claim:

1. A device for annealing wax, waxy substances and compositions for dental purposes comprising a liquid container, an electric\ heating element disposed beneath said container, automatically [operated means for regulating the heating of a liquid in the defined by the appended Y container, a cover for said container', and

cups depending from said cover into the container, said cups being adapted to hold articles to be heated.

2. A device for annealing wax, waxy substances and compositions for dental purposes comprising a liquid container, a heating element for said container, automatically operated means for regulating the heat of the liquid in the container, a cover for said container having an aperture formed therein, and a cupdisposed in saidaperture and depending into said container, said cup being adapted to be heated by the liquid in said container.

3. A device for annealing Wax, waxy substances and compositions for dental purposes comprising a liquid container, a heating element for said container, automatically operated means for regulating the heat of a liquid in the container, a cover for said contamer having an aperture formed therem, A

a cup disposed in said aperture and de endlng Into said container, said cup ing adapted to be heated, a cupl cover for said cup, and a tray adapted to be suspended lfrom said cup cover Within said cup upon which are adapted to be placed articles to be heated.

4. A device for annealing Wax, waxy substances and compositions for dental purposes comprising a liquid container, a heating element for said container, automatically operated means for regulating the lheating of a liquid in said container,` a cover for said container, apertures formed in said cover, and cups suspended through said apertures into the liquid in said container, one of said cups being'adapted to hold a li uid to be heated and the other cups being adapted to hold preparations to be heated. In testimony whereof I have signed my name to this specification.A

HARRY A. BONOFF. 

